The scanning system should check the default credentials that can be easily guessed. Security teams may not want a network scan because of the alarm traffic they generate, but that is the only way to identify everything on the network. You need to know all the devices on your network because you can’t manage what you don’t know. This approach greatly simplifies automation and facilitates good network security. For example, a branch office network deployment is a single network that includes details such as device hardware, operating system, and interfaces. (There is one policy that is not reflected in the device configuration. Automation systems help deploy and maintain configurations that reflect policies. These policies range from simple non-security related policies such as device naming criteria to important security policies such as authentication controls and access control lists. When each device on the network is discovered, the automation system downloads its configuration and matches it with the configuration rules that implement the network policy. Forgotten and unsecured routers can be exploited by malicious attackers. In other words, the goal of automation is to ensure that network policies are applied consistently throughout the network. By automating the process of device detection and configuration verification, you can enhance good network security by preventing devices and configurations from accidentally leaving security holes open.
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